Essex · England
Old Heath Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Old Heath and across Essex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cement or filler used on old window joints that has cracked
- Mastic that needs renewing before redecorating
- Modern sealant on a period surround
Landlords, agents and businesses in Old Heath
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we are fully insured.
Sand mastic in Old Heath
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We work on timber door frames, period & listed homes and tenement windows, and the jobs we see most are mastic worn away on windows facing the weather and window mastic to renew ahead of painting.
Houses in smaller places like Old Heath can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- Old Heath (CO2, CO1, CO4)
- Wider area
- Essex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Leave it or put it right?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In an older home around Old Heath, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What you get with us
- A 12-month guarantee on all work
- Homes, businesses and hotels
- Trusted Arbo and Everbuild sealants
- Neat joints and a tidy finish
Take a look at our cost guide or what customers say.
Towns and villages near Old Heath
More services for Old Heath
How the job changes by surface
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Avoid patching sand mastic with silicone
- Inspect the joints round the windows every year or so
- Don’t paint over the new mastic
- Keep sills and gutters clear so water drains away
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Parking around Old Heath is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
How to get a quote
For sand mastic in Old Heath, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Related advice
Questions from Old Heath
Will you come out to Old Heath?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Hythe station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
How do I get a quote for sand mastic in Old Heath?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Do you offer different sealant colours?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before any work starts.
Frames and glazing around Old Heath
Old Heath is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Old Heath Community Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St Barnabas include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Hythe station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Old Heath is about 1 mile south of Greenstead, in Essex. Old Heath gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Essex coverage runs to 644 places, and Old Heath is one of them. We also work in Chelmsford, about 21 miles from Old Heath.
All of CO2, CO1 and CO4 is covered for sand mastic. We cover properties on Wick Road, Haven Road and D'arcy Road and the roads around them. Neighbouring places we cover for sand mastic include The Hythe (1 mile north), Berechurch (1 mile south-west), Rowhedge (1 mile south-east), Greenstead (1 mile north) and Wivenhoe Cross (2 miles east). We also work in nearby towns such as Clacton-on-Sea (11 miles south-east), Maldon (14 miles south-west), Witham (13 miles west), Harwich (15 miles east), Halstead (13 miles west) and Heybridge (13 miles south-west).
Near you in Old Heath
We work in homes and buildings around The Bell pub, Thomas Lord Audley School and Language College and Donyland Lodge, among other places. The nearest railway station is Hythe station, about 1 mile north of the centre. Well-known places in the area include Essex County Hospital (1.9 miles north-west) and Grandad's Photography Museum (1.5 miles north-west). For a walk, there’s Cockaynes Wood.
When something else is needed
We’d rather tell you now than do work that will not last, so these are the limits:
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Tenement windows
- Timber door frames
- Brick reveals
- Sash and case windows